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(!!!!) (Recommended RCA bronze plates pair) 5687 RCA bronze plates NOS 1960's - 1970 (28.5/31ma and 29/30ma)

(!!!!) (Recommended RCA bronze plates pair) 5687 RCA bronze plates NOS 1960's - 1970 (28.5/31ma and 29/30ma)

$ 64.99

1 low noise tube) 5687 RCA black plates NOS 1960's - 1970

1 tube) 28.5/31.0ma Gm=10,000/10,700

1 tube) 29.0/30.0ma Gm=10,500/10,700

 

Good NOS Ma range 30-35ma

Good NOS Gm range 10,000-12,000

 

Recommended for

Manley

Modwright

Audio Note

Ray Samuels

Ayon

Kondo

Mastersound

Audio Thrills

Loth

     

     

     

     

     

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